I know this change did already take place some months ago, but I wanted to write about this immediately. Here's the situation:

• When I click on
• I login on my gmail account and get : but in my case, if I click onJ'accepte(I agree) then I'm forced to upgrade to a Google profile because of the new Stack-exchange openid login behaviour.
• If click onAnnuler(cancel) I get :

I created a gmail account in the early beginning, I only had to fulfil password; name; and email-address. I also find unfair that others providers don't have to provide those informations while it is required for Google.
I can understand this for things like facebook... But not every Google accounts are Google accounts...

Also, let's be clear: No, I will never upgrade, the same way I would never create a social media profile.